Mary collected data each day on how many commercials she saw and how long she watched TV. She displayed her data in a scatter plot. Based on the least square regression line graphed on the scatterplot, estimate the residual for a person who spent 40 minutes watching TV and saw 10 commercials.
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To estimate the residual for a person who spent 40 minutes watching TV and saw 10 commercials, we first need to determine the predicted value for this data point using the least squares regression line.
Once we have the predicted value, we can then calculate the residual by subtracting the predicted value from the actual value.
Without the actual data or the equation of the regression line, it's impossible to calculate the predicted value and, consequently, the residual.